Improvement in artificial palates



l. PEYER.

Artificial Palate.

Patenied June15,1875.

Wiroosses:

THE GRAPH IO C0.PHOTO -LITH.39 A41 PARK PLACEJLY.

UNITED STATES PATENT OFFICE.

JACOB PEYER, OF BERNE, SWITZERLAND.

IMPROVEMENT IN ARTIFICIAL PALATES.

Specification forming part of Letters Patent No. 164,591, dated J une15, 1875; application filed April 3, 1875.

To all whom it may concern:

Be it known that I, J AGQB PEYER, of Berne, in the Republic ofSwitzerland, have invented certain Improvements in Artificial Palates orObdurators, of which the following is a specification:

This invention relates to an improved valve for artificial palates orobdurators; and it consists in an oval plate provided with a sheath, inwhich a flat plate or tongue attached to the palate is adapted to fitand move with a slight longitudinal motion, said plate carrying twoWings pivoted thereon, and pressed outward by means of a spiral spring,to adapt the valve to the movement of the muscles, as hereinafter fullyset forth.

In the accompanying drawings, Figure 1 represents a plan view of myinvention; Fig. 2, a vertical sectional view of the same Fig. 3, adetached view of the wings forming the valve, and Figs. 4 and 5 aredetached views of the wings forming the valve.

The valve A is made in three pieces, one of which, a, is of oval orother approximate form, and contains the tubular cavity or sheath 1),for the reception of the lever or tongue 0, and said oval plate haspivoted to it the two wings d (1. These three pieces, when in place together, present the same form as the walls of from each other, in orderto enable them to properly fit the parts to which they are applied, andto accommodate themselves to the movements of the muscle.

The tongue 0 of the valve constructed as above described is hinged orpivoted to the palate-plate B, so as to allow the valve to be moved bythe operation of the muscles. A spiral spring, g, has one end attachedto the palate-plate B and the other end to the oval. plate of the valve,the object of such being to return the valve to its proper positionafter being moved by the operation of the muscles.

The metal used in connection with the rubber in making this apparatus ispreferably gold or platinum. In order to strengthen the material andinsure solidity in the attachment of the parts, gold or platinum nutsare embedded in the rubber at points where screws are used for attachingthe parts together.

The obdurator or artificial palate constructed as above described isintended to remedy the evils resulting from total or partial loss of thepalate, and to replace as near as possible the natural palate byenabling the patient to some extent to perform those operations whichare performed by means of the natural palate.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

The valve constructed of the oval plate at, having a sheath, d, incombination with the sliding plate 0, arranged in said sheath, the wingsd, pivoted to the said oval plate a, and the spring f, for pressing saidwings outward, all substantially as and for the object specified.

DR. JACOB PEYER.

Witnesses:

DUMAS, J. P. OLIVIER.

